Listener issue

From: Michael Schmitt <mschmitt@xxxxxxxxxxxx>

To: "oracle-l@xxxxxxxxxxxxx" <oracle-l@xxxxxxxxxxxxx>

Date: Thu, 26 Apr 2012 20:59:11 +0000

Hello,
I have a couple databases running 10205 in a development environment. The
production environment had not been upgraded yet, and was running 10203. The
Application team wanted us to restore a couple of the databases from production
onto development and keep it 10203. I still had the binaries on development so
removed the 10205 databases and then recreated them as 10203 from the backup.
The listener was running out of the 10205 binaries, so I just updated the
oracle home there. For some reason, the connection to the databases running
10203 is dropping with "ORA-12537: TNS:connection closed". I am pretty sure I
have done this plenty of times in the past on different servers, so can't
figure out what the problem is. I thought as long as the listener is running a
higher version (10205), I should be fine. The listener still hands off the
connection to the databases that remain 10205 without a problem. If I shutdown
the 10205 listener, and startup the old 10203 listener, it hands off the
connection to the newly refreshed 10203 databases without a problem.
The error showing up in the listener.log is
26-APR-2012 15:35:10 *
(CONNECT_DATA=(SID=<DB_NAME>)(CID=(PROGRAM=sqlplus@<machine>)(HOST=machine)(USER=oracle)))
* (ADDRESS=(PROTOCOL=t
cp)(HOST=machine)(PORT=54980)) * establish * SID * 12518
TNS-12518: TNS:listener could not hand off client connection
TNS-12547: TNS:lost contact
TNS-12560: TNS:protocol adapter error
TNS-00517: Lost contact
Solaris Error: 32: Broken pipe
I know I must be missing something, but can't think of what it is. Any ideas?
Thanks is advance
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